﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Ports;
using JN.Utility;

namespace Power.MeterControl
{
    public class MeterController
    {
        #region property
        private MeterCommon common = MeterCommon.Instance;
        private System.IO.Ports.SerialPort meterSerialPort;
        private readonly object SendLockObj = new object();
        #endregion
        #region crc
        private uint[] auchCRCHi = new uint[] {
                    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
                    0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
                    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
                    0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
                    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81,
                    0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
                    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
                    0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
                    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
                    0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
                    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
                    0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
                    0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
                    0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
                    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
                    0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
                    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
                    0x40
                    };

        private uint[] auchCRCLo = new uint[] {
                    0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7, 0x05, 0xC5, 0xC4,
                    0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
                    0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD,
                    0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
                    0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32, 0x36, 0xF6, 0xF7,
                    0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
                    0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE,
                    0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
                    0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1, 0x63, 0xA3, 0xA2,
                    0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
                    0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB,
                    0x7B, 0x7A, 0xBA, 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
                    0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0, 0x50, 0x90, 0x91,
                    0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
                    0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88,
                    0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
                    0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83, 0x41, 0x81, 0x80,
                    0x40
                    };
        #endregion
        private static MeterController instance = null;
        private static readonly object plcLock = new object();
        public static MeterController Instance
        {
            get
            {
                lock (plcLock)
                {
                    if (instance == null)
                    {
                        instance = new MeterController();
                    }
                    return instance;
                }
            }
        }

        private MeterController()
        {
            
        }
        public void OpenPort()
        {
            try
            {
                meterSerialPort = new SerialPort();
                meterSerialPort.PortName = "COM8";
                meterSerialPort.BaudRate = 9600;
                meterSerialPort.DataBits = 8;
                meterSerialPort.Parity = System.IO.Ports.Parity.None;
                meterSerialPort.StopBits = System.IO.Ports.StopBits.One;
                meterSerialPort.ReadTimeout = 500;
                meterSerialPort.WriteTimeout = 500;
                meterSerialPort.Open();
            }
            catch (Exception ex)
            {
                SystemLogger.Write(ex);
            }
        }
        public void ClosePort()
        {
            if (meterSerialPort != null)
            {
                meterSerialPort.Close();
            }
        }
        public bool Write(string writeCmd, ref string chkRevMsg)
        {
            try
            {
                lock (SendLockObj)
                {
                    bool isOK = false;
                    byte[] command = common.BuildCommand(writeCmd, true);
                    //string command = plcCommu.BuildCommand(writeCmd,true);
                    if (!meterSerialPort.IsOpen)
                    {
                        meterSerialPort.Open();
                    }
                    meterSerialPort.DiscardInBuffer();
                    //plcSerialPort.WriteLine(command);
                    meterSerialPort.Write(command, 0, command.Length);
                    System.Threading.Thread.Sleep(200);
                    if (meterSerialPort.BytesToRead == 0)
                    {
                        return false;
                    }
                    //Check return message                                    
                    byte[] stdResult = common.BuildCommand(chkRevMsg, true);
                    //int count = stdResult.Length;
                    int count = meterSerialPort.BytesToRead;
                    byte[] realResult = new byte[count];
                    //string sult = "";
                    for (int i = 0; i < count; i++)
                    {
                        realResult[i] = Convert.ToByte(meterSerialPort.ReadByte());
                       // System.Threading.Thread.Sleep(1);
                    }

                    isOK = common.CompareResult(stdResult, realResult);
                    chkRevMsg = common.ByteToHexString(realResult);
                    return isOK;
                }
            }
            catch (TimeoutException ex)
            {
                //HandLog(new LogEventArgs(ex));
                return false;
            }
            catch (Exception ex)
            {
                //HandLog(new LogEventArgs(ex));
                return false;
            }
        }

        public string Read()
        {
            try
            {
                if (!meterSerialPort.IsOpen)
                {
                    meterSerialPort.Open();
                }

                StringBuilder ret = new StringBuilder();
                if (meterSerialPort.BytesToRead == 0)
                {
                    return "" ;
                }

                int count = meterSerialPort.BytesToRead;
                byte[] bts = new byte[count];
                while (meterSerialPort.BytesToRead > 0)
                {
                    int ReceData = meterSerialPort.ReadChar();
                    int c = meterSerialPort.Read(bts,0,count);
                    ret.Append(MeterCommon.Instance.ByteToHexString(bts));
                    //ret.Append(Convert.ToChar(ReceData).ToString());
                    //System.Threading.Thread.Sleep(3);
                }

                return ret.ToString();
            }
            catch (Exception ex)
            {
                System.Windows.Forms.MessageBox.Show(ex.ToString());
                return "";
            }
        }
        
    }
}
